Hello Bartek and welcome to the forum.
What capabilities are you mainly interested in?
- readout of raw binary data from FDR (intact/damaged)
- conversion of raw binary data in engineering units
- analysis of data in tabular/graphical format
- visualization of flight data using 3D graphics
For the first two subject I can provide some additional reference material.
This software suite covers all these capabilities, so it is rather popular for accident investigation purposes:
https://www.flightscape.com/products/index.php
The Taiwanese
Aviation Safety Council has put online some reports about the training they received from Flightscape on this software:
http://www.asc.gov.tw/author_files/A...-04-12-002.pdf
http://www.asc.gov.tw/author_files/A...-06-02-001.pdf
http://www.asc.gov.tw/author_files/A...-07-09-001.pdf
The reports are in Chinese. If you don't know Chinese, but you have a little patience, you can copy and paste the text of each page here:
Google Translateand you will get at least the general sense of the text.
This is another software mainly for FDM/FOQA use:
Welcome to Aerobytes - The only FDM/FOQA software with built in QA tools
I hope this helps.
BR,
aerolearner